Ionic liquids as novel spectroscopic solvents for Eu（III）-containing complex
来源期刊：Journal of Rare Earths2011年第10期
论文作者：邓岳锋 赵贺 陈继 李义民 公发全 韩新民 刘万发
文章页码：915 - 919
摘 要：Novel soft materials,Eu（III）-containing complex dissolved in [C8mim][X]（X=Cl-,PF6-and Tf2N-） ionic liquids,were synthesized.FT-IR and elementary analysis of complex proved that the molecular formula is [C8mim][Eu（TTA）4].The complex and ionic liquids had highthermal stability according to TGA.The photoluminescence spectra showed that the [C8mim][Eu（TTA）4] exhibited typical red emission deriving from 5D0-7F2 transition.After dissolving the complex in [C8mim][X]（X=Cl-,PF6-and Tf2N-） ionic liquids,the luminescence intensitydecreased in the following order:[C8mim][Tf2N]≈[C8mim][PF6 ]>[C8mim][Cl].This was because Tf2N-and PF6-anions had larger molecularvolume and weaker coordination ability than Cl-.
邓岳锋1,2，赵贺2，陈继2，李义民1，公发全1，韩新民1，刘万发1
1. Key Laboratory of Chemical Lasers,Dalian Institute of Chemical Physics,Chinese Academy of Sciences2. State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences
摘 要：Novel soft materials,Eu（III）-containing complex dissolved in [C8mim][X]（X=Cl-,PF6-and Tf2N-） ionic liquids,were synthesized.FT-IR and elementary analysis of complex proved that the molecular formula is [C8mim][Eu（TTA）4].The complex and ionic liquids had highthermal stability according to TGA.The photoluminescence spectra showed that the [C8mim][Eu（TTA）4] exhibited typical red emission deriving from 5D0-7F2 transition.After dissolving the complex in [C8mim][X]（X=Cl-,PF6-and Tf2N-） ionic liquids,the luminescence intensitydecreased in the following order:[C8mim][Tf2N]≈[C8mim][PF6 ]>[C8mim][Cl].This was because Tf2N-and PF6-anions had larger molecularvolume and weaker coordination ability than Cl-.
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